Solve the problem.A particle is moving on a horizontal line. Its distance from the origin at time t seconds is 
What is the instantaneous velocity at 
A. - 
ft/sec
B. 
ft/sec
C. - 
ft/sec
D. - 
ft/sec
Answer: A
Mathematics
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Find R1 if RT = 27 Kê and R2 = 5.1 Kê.
a. 21.9 Kê
b. 32.1 Kê
c. 78 Kê
d. 116 Kê
e. 121.9 Kê
Mathematics
Write an equation to describe the variation. Use k for the constant of proportionality.P varies jointly as R and the cube of S.
A. P = k + R + S3 B. PRS3 = k C. P + R + S3 = k D. P = kRS3
Mathematics
Use a double-angle identity to find the exact value of the expression.
A. 
B. 
C. 
D. 
Mathematics
Solve by the addition method.3x2 + 2y2 = 27x2 + 2y2 = 9
A. (-3, 0), (3, 0)
B. (-3i, 0), (3i, 0)
C. (-3, -
), (-3, 
), (3, -
), (3, 
)
D. (3, 0)
Mathematics